c语言求二位数组行列的平均数

以下是C语言求二维数组行列平均数的示例代码：

#include <stdio.h>

int main() {
    float score[5][3] = {{80, 90, 70}, {85, 95, 75}, {90, 85, 80}, {95, 80, 85}, {70, 75, 90}};
    float row_average[5] = {0.0, 0.0, 0.0, 0.0, 0.0};
    float column_average[3] = {0.0, 0.0, 0.0};

    // 计算行平均数
    for (int i = 0; i < 5; i++) {
        for (int j = 0; j < 3; j++) {
            row_average[i] += score[i][j];
        }
        row_average[i] /= 3;
    }

    // 计算列平均数
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 5; j++) {
            column_average[i] += score[j][i];
        }
        column_average[i] /= 5;
    }

    // 输出结果
    printf("每个学生的平均分为：\n");    for (int i = 0; i < 5; i++) {
        printf("第%d个学生的平均分为：%f\n", i + 1, row_average[i]);
    }

    printf("每门课的平均分为：\n");
    for (int i = 0; i < 3; i++) {
        printf("第%d门课的平均分为：%f\n", i + 1, column_average[i]);
    }

    return 0;
}